Low-grade fibromyxoid sarcoma of the transverse colon: A case report

Abstract

A 52 year old lady presented with non-specific abdominal symptoms and menorrhagia. Ultrasound scan revealed an incidental finding of a large soft tissue mass. This was further characterised with a CT scan which revealed a 15 cm × 10 cm × 7 cm multilobulated mass. This was removed via a subtotal colectomy. Initial histology was reported as a most likely diagnosis of gastro-intestinal stromal tumour (GIST) but further characterisation revealed this to be a low-grade fibromyxoid sarcoma.

This is only the second reported case of low-grade fibromyxoid sarcoma of the colon and would potentially have been missed had not the sample been sent for second opinion at a regional specialist centre.